铀的放射性

Radioactivity of uranium

以上为机器翻译结果，快速获取精准的人工翻译结果，建议选择有道人工翻译

1
然而，有些含氙同位素的矿物并非如此，是由铀的放射性衰变产生的。
However, some of the minerals contain xenon isotopes unlike those usually produced by radioactive decay of uranium.
2
氦是钍和铀元素数千年放射性衰变的副产品。
Helium is the by product of millennia of radioactive decay from the elements thorium and uranium.
3
于是她发现沥青油矿，它的放射性要比铀本身还要强。
Then she found that pitchblende was more radioactive than uranium by itself.

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